def addAxis(self,plot,**args):
"""
Add an axis on the right side
.. tabularcolumns:: |p{3cm}|p{11cm}|
=============== ============================================================================================
**Arguments**
=============== ============================================================================================
plot pyqtgraph.PlotWidget
*args
1. label Label of the new axis
=============== ============================================================================================
:return: pg.ViewBox
"""
p3 = pg.ViewBox()
ax3 = pg.AxisItem('right')
plot.plotItem.layout.addItem(ax3, 2, 3+len(plot.axisItems))
plot.plotItem.scene().addItem(p3)
ax3.linkToView(p3)
p3.setXLink(plot.plotItem)
ax3.setZValue(-10000)
if args.get('label',False):
ax3.setLabel(args.get('label',False), color=args.get('color','#ffffff'))
p3.setGeometry(plot.plotItem.vb.sceneBoundingRect())
p3.linkedViewChanged(plot.plotItem.vb, p3.XAxis)
## Handle view resizing
Callback = functools.partial(self.updateViews,plot)
plot.getViewBox().sigStateChanged.connect(Callback)
plot.viewBoxes.append(p3)
plot.axisItems.append(ax3)
self.plots2D[p3]=[] # TODO do not consider a new axis as a plot. simply make it a part of the axisItems array of the main plot
return p3
python类AxisItem()的实例源码
def tickStrings(self, values, scale, spacing):
"""
Defines the tick marking format based on display mode
See `~pygtgraph.AxisItem` for parameter definitions.
"""
if self._layer is None:
return super(DynamicAxisItem, self).tickStrings(values, scale,
spacing)
spatial_unit = self._layer.masked_dispersion.data.unit
dispersion = self._layer.masked_dispersion
inds = np.arange(dispersion.size, dtype=int)
if self.mode == 0:
c = const.c.to('{}/s'.format(spatial_unit))
waves = u.Quantity(np.array(values), spatial_unit)
ref_wave = u.Quantity(self.ref_wave, spatial_unit)
v_quant = ((waves - ref_wave) / waves * c).to('km/s')
v = v_quant.value
v[np.isnan(v)] = 0.0
self.setLabel("Velocity [{}]".format(v_quant.unit), None, None)
return ["{:.4E}".format(x) for x in v]
elif self.mode == 1:
self.setLabel('Redshifted Wavelength [{}]'.format(spatial_unit))
return ["{:0.2f}".format(v / (1 + self.redshift) * scale)
for v in values]
elif self.mode == 2:
self.setLabel("Pixel", None, None)
inds = np.searchsorted(dispersion, values)
return list(inds)
return super(DynamicAxisItem, self).tickStrings(values, scale, spacing)
def __init__(self, sandbox, *args, **kwargs):
pg.GraphicsLayoutWidget.__init__(self, **kwargs)
self.sandbox = sandbox
self.plots = [
DisplacementPlot(
sandbox,
title='North',
component=lambda m: m.north),
DisplacementPlot(
sandbox,
title='East',
component=lambda m: m.east),
DisplacementVectorPlot(
sandbox,
title='Down',
component=lambda m: m.down),
DisplacementPlot(
sandbox,
title='LOS',
component=lambda m: m.displacement)]
self.plots[-1].addHintText()
self._mov_sig = pg.SignalProxy(
self.scene().sigMouseMoved,
rateLimit=60, slot=self.mouseMoved)
for ip, plt in enumerate(self.plots):
row = ip / 2
col = ip % 2 + 1
self.addItem(plt, row=row, col=col)
plt.showGrid(x=True, y=True)
plt.hideAxis('bottom')
plt.hideAxis('left')
plt.vb.border = pg.mkPen(50, 50, 50)
if ip != 0:
plt.setXLink(self.plots[0])
plt.setYLink(self.plots[0])
def getAxis(plt, orientation, label):
axis = pg.AxisItem(
orientation=orientation,
linkView=plt.vb)
axis.setLabel(label, units='m')
return axis
plts = self.plots
self.addItem(getAxis(plts[0], 'left', 'Northing'), row=0, col=0)
self.addItem(getAxis(plts[1], 'left', 'Northing'), row=1, col=0)
self.addItem(getAxis(plts[0], 'bottom', 'Easting'), row=2, col=1)
self.addItem(getAxis(plts[1], 'bottom', 'Easting'), row=2, col=2)
for plt in self.plots:
plt.vb.menu = QtGui.QMenu(self)
def __init__(self, sandbox, *args, **kwargs):
pg.GraphicsLayoutWidget.__init__(self, **kwargs)
self.sandbox = sandbox
self.plots = [
DisplacementPlot(
sandbox,
title='Scene Displacement',
component=lambda m: m.reference.scene.displacement),
DisplacementPlot(
sandbox,
title='Model Residual',
component=lambda m: m.reference.difference)]
self.plots[-1].addHintText()
self._mov_sig = pg.SignalProxy(
self.scene().sigMouseMoved,
rateLimit=60, slot=self.mouseMoved)
for ip, plt in enumerate(self.plots):
row = ip / 2
col = ip % 2 + 1
self.addItem(plt, row=row, col=col)
plt.showGrid(x=True, y=True)
plt.hideAxis('bottom')
plt.hideAxis('left')
plt.vb.border = pg.mkPen(50, 50, 50)
if ip != 0:
plt.setXLink(self.plots[0])
plt.setYLink(self.plots[0])
def getAxis(plt, orientation, label):
axis = pg.AxisItem(
orientation=orientation,
linkView=plt.vb)
axis.setLabel(label, units='m')
return axis
plts = self.plots
self.addItem(getAxis(plts[0], 'left', 'Northing'), row=0, col=0)
self.addItem(getAxis(plts[1], 'left', 'Northing'), row=1, col=0)
self.addItem(getAxis(plts[0], 'bottom', 'Easting'), row=2, col=1)
self.addItem(getAxis(plts[1], 'bottom', 'Easting'), row=2, col=2)
